Dear Knute:
Thank you for the reply.
I had 35 bars that requires the \hideNotes:
bars 16, 20, 21, 23, 25, 26 no \unHideNotes coded
bar 40 requires \unHideNotes
bar 42 no \unHideNotes coded
bar 44 requires \unHideNotes
bar 46 no \unHideNotes coded
bar 51 requires \unHideNotes
bars 52, 56, 57,59,60,76 no \unHideNotes coded
bar 78 requires \unHideNotes
bar 80 no \unHideNotes coded
bar 85 requires \unHideNotes
bars 86, 90,91 no \\unHideNotes coded
bar 108 requires \unHideNotes
bar 110 no \unHideNotes coded
bars 112 ,119 requires \unHideNotes
bar 120 no \unHideNotes